package cn.jobstart.common;


import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.oned.Code128Writer;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

/**
 * @author sunke
 * @Date 2021/3/5 00:35
 * @description 谷歌条形码打印
 */

public class GoogleBarCodeUtils {

    /**
     * 条形码宽度
     */
    private static final int WIDTH = 300;

    /**
     * 条形码高度
     */
    private static final int HEIGHT = 50;

    /**
     * 加文字 条形码
     */
    private static final int WORDHEIGHT = 75;
    /**
     * 设置 条形码参数
     */
    private static final Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>() {
        private static final long serialVersionUID = 1L;

        {
            // 设置编码方式
            put(EncodeHintType.CHARACTER_SET, "utf-8");
            put(EncodeHintType.MARGIN, 0);

        }
    };

    public static BufferedImage getBarCode(String vaNumber) {


        return getBarCode(vaNumber, false);
    }

    /**
     * 生成 图片缓冲
     *
     * @param vaNumber VA 码
     * @return 返回BufferedImage
     * @author fxbin
     */
    public static BufferedImage getBarCode(String vaNumber, boolean leftAlgin) {
        try {

            //  return CodeBar128Util.getCodeBar(vaNumber,WIDTH,HEIGHT);

            Code128Writer writer = new Code128Writer();

            // 编码内容, 编码类型, 宽度, 高度, 设置参数

            int width=WIDTH;

            if (leftAlgin) {

               int len=writer.encode(vaNumber).length;

                width=len *  (WIDTH/len);
            }

            BitMatrix bitMatrix = writer.encode(vaNumber, BarcodeFormat.CODE_128, width, HEIGHT, hints);
            return MatrixToImageWriter.toBufferedImage(bitMatrix);
            /*int width = bitMatrix.getWidth();

            int height = bitMatrix.getHeight();

            int[] pixels = new int[width * height];
            BitMatrix output = new BitMatrix(width, height);
            for (int y = 0; y < height; y++) {

                for (int x = 0; x < width; x++) {
                    if (bitMatrix.get(x, y)) {
                        pixels[y * width + x] = 0xff00000;
                        output.set(x,y);
                    } else {
                        output.unset(x,y);
                        pixels[y * width + x] = 0xffffffff;
                    }



                }



            }
*/






        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }


    public static BufferedImage insertWords(BufferedImage image, String words) {

        return insertWords(image, words, false);
    }

    /**
     * 把带logo的二维码下面加上文字
     *
     * @param image 条形码图片
     * @param words 文字
     * @return 返回BufferedImage
     * @author fxbin
     */
    public static BufferedImage insertWords(BufferedImage image, String words, boolean leftAlign) {

        if (StringUtil.isNullOrEmpty(words)) {
            return image;
        }


        // 新的图片，把带logo的二维码下面加上文字
        // if (StringUtil.isNotEmpty(words)) {

        BufferedImage outImage = new BufferedImage(WIDTH, WORDHEIGHT, BufferedImage.TYPE_INT_RGB);

        Graphics2D g2d = outImage.createGraphics();

        // 抗锯齿
        setGraphics2D(g2d);
        // 设置白色
        setColorWhite(g2d);

        // 画条形码到新的面板
        if (leftAlign) {
            g2d.drawImage(image, 0, 0, image.getWidth(), image.getHeight(), null);
        } else {
            g2d.drawImage(image, (WIDTH - image.getWidth()) / 2, 0, image.getWidth(), image.getHeight(), null);
        }
        // 画文字到新的面板
        Color color = new Color(0, 0, 0);
        g2d.setColor(color);
        // 字体、字型、字号
        g2d.setFont(new Font("微软雅黑", Font.PLAIN, 18));
        //文字长度
        int strWidth = g2d.getFontMetrics().stringWidth(words);
        //总长度减去文字长度的一半  （居中显示）
        int wordStartX = (WIDTH - strWidth) / 2;
        //height + (outImage.getHeight() - height) / 2 + 12
        int wordStartY = HEIGHT + 20;

        // 画文字
        g2d.drawString(words, wordStartX, wordStartY);
        g2d.dispose();
        outImage.flush();
        return outImage;

    }

    /**
     * 设置 Graphics2D 属性  （抗锯齿）
     *
     * @param g2d Graphics2D提供对几何形状、坐标转换、颜色管理和文本布局更为复杂的控制
     */
    private static void setGraphics2D(Graphics2D g2d) {
        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        g2d.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_DEFAULT);
        Stroke s = new BasicStroke(1, BasicStroke.CAP_ROUND, BasicStroke.JOIN_MITER);
        g2d.setStroke(s);
    }

    /**
     * 设置背景为白色
     *
     * @param g2d Graphics2D提供对几何形状、坐标转换、颜色管理和文本布局更为复杂的控制
     */
    private static void setColorWhite(Graphics2D g2d) {
        g2d.setColor(Color.WHITE);
        //填充整个屏幕
        g2d.fillRect(0, 0, 600, 600);
        //设置笔刷
        g2d.setColor(Color.BLACK);
    }


    /**
     * 生成条形码
     *
     * @param number
     * @param word
     * @param filePath
     */
    public static void createBarcodeToFile(String number, String word, String filePath, String fileName) {

        try {


            FileUtil.mkdirs(filePath);
            BufferedImage image = insertWords(getBarCode(number), word);
            ImageIO.write(image, "png", new File(filePath + File.separator + fileName + ".png"));
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    public static void createBarcodeToFile(String number, String word, String filePath, String fileName, boolean leftAlign) {

        try {


            FileUtil.mkdirs(filePath);
            BufferedImage image = insertWords(getBarCode(number, leftAlign), word, leftAlign);
            ImageIO.write(image, "png", new File(filePath + File.separator + fileName + ".png"));
        } catch (IOException e) {
            e.printStackTrace();
        }

    }


    public static void main(String[] args) throws IOException {

        createBarcodeToFile("11111111", null, "/Users/sunke/Desktop/aa", "cc", true);
//        A80/90R8A(8A侧通孔)

    }
}
